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1f4j

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Revision as of 01:34, 11 September 2015

STRUCTURE OF TETRAGONAL CRYSTALS OF HUMAN ERYTHROCYTE CATALASE

Structural highlights

1f4j is a 4 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	1qqw
Activity:	Catalase, with EC number 1.11.1.6
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Disease

[CATA_HUMAN] Defects in CAT are the cause of acatalasemia (ACATLAS) [MIM:614097]. A metabolic disorder characterized by absence of catalase activity in red cells and is often associated with ulcerating oral lesions.^[1]

Function

[CATA_HUMAN] Occurs in almost all aerobically respiring organisms and serves to protect cells from the toxic effects of hydrogen peroxide. Promotes growth of cells including T-cells, B-cells, myeloid leukemia cells, melanoma cells, mastocytoma cells and normal and transformed fibroblast cells.^[2]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The structure of catalase from human erythrocytes (HEC) was determined in tetragonal crystals of space group I4(1) by molecular-replacement methods, using the orthorhombic crystal structure as a search model. It was then refined in a unit cell of dimensions a = b = 203.6 and c = 144.6 A, yielding R and R(free) of 0.196 and 0.244, respectively, for all data at 2.4 A resolution. A major difference of the HEC structure in the tetragonal crystal compared with the orthorhombic structure was the omission of a 20-residue N-terminal segment corresponding to the first exon of the human catalase gene. The overall structures were otherwise identical in both crystal forms. The NADPH-binding sites were empty in all four subunits and bound water molecules were observed at the active sites. The structure of the C-terminal segment, which corresponds to the last exon, remained undetermined. The tetragonal crystals showed a pseudo-4(1)22 symmetry in molecular packing. Two similar types of lattice contact interfaces between the HEC tetramers were observed; they were related by the pseudo-dyad axes.

Structure of tetragonal crystals of human erythrocyte catalase.,Safo MK, Musayev FN, Wu SH, Abraham DJ, Ko TP Acta Crystallogr D Biol Crystallogr. 2001 Jan;57(Pt 1):1-7. PMID:11134921^[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Wen JK, Osumi T, Hashimoto T, Ogata M. Molecular analysis of human acatalasemia. Identification of a splicing mutation. J Mol Biol. 1990 Jan 20;211(2):383-93. PMID:2308162 doi:http://dx.doi.org/10.1016/0022-2836(90)90359-T
↑ Takeuchi A, Miyamoto T, Yamaji K, Masuho Y, Hayashi M, Hayashi H, Onozaki K. A human erythrocyte-derived growth-promoting factor with a wide target cell spectrum: identification as catalase. Cancer Res. 1995 Apr 1;55(7):1586-9. PMID:7882369
↑ Safo MK, Musayev FN, Wu SH, Abraham DJ, Ko TP. Structure of tetragonal crystals of human erythrocyte catalase. Acta Crystallogr D Biol Crystallogr. 2001 Jan;57(Pt 1):1-7. PMID:11134921

1 Structural highlights
2 Disease
3 Function
4 Evolutionary Conservation
5 Publication Abstract from PubMed
6 See Also
7 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1f4j"

@@ Line 6: / Line 6: @@
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1qqw|1qqw]]</td></tr>
 <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Catalase Catalase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.11.1.6 1.11.1.6] </span></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1f4j FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1f4j OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1f4j RCSB], [http://www.ebi.ac.uk/pdbsum/1f4j PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1f4j FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1f4j OCA], [http://pdbe.org/1f4j PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1f4j RCSB], [http://www.ebi.ac.uk/pdbsum/1f4j PDBsum]</span></td></tr>
 </table>
 == Disease ==
@@ Line 30: / Line 30: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 1f4j" style="background-color:#fffaf0;"></div>
 ==See Also==

1f4j

From Proteopedia

Revision as of 01:34, 11 September 2015

STRUCTURE OF TETRAGONAL CRYSTALS OF HUMAN ERYTHROCYTE CATALASE

Structural highlights

Disease

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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